Three modes: The 3-in-1 aquarium cleaning tool sucks up water, removes algae and cleans gravel. li> Multi-purpose design: The gravel cleaner can be used directly with batteries and adapters. Adjust the different lengths freely: 62/73 cm, suitable for medium and large aquariums. Easy installation and use: gravel cleaner installed, please keep the water level between MAX (60 cm) and MIN (20 cm) and then turn on the switch. The aquarium water is automatically pumped through a hose for the water change. li> Cleaning function: can also clean gravel, effectively vacuum fish deposits and other dirt without the need for water change. Properties and additives: high safety performance, only 2 alkaline batteries of size C are needed (package not included). Blue hose length: 75 cm. Mechanically fixed, no lubrication, safer for fish: toxins such as oil and glue can affect the survival of fish. The combination of components of this aquarium sand cleaner is non-sticky and does not
